The only way to deal with the licensing problems is through the Support page provided by the developers. I recommend you visit the page linked below to get in touch with the live support. They should provide all the necessary information related to licensing errors and troubleshooting.
Support page: https://www.msab.com/support/
Additionally, remove the current version of the licensing software, then use CCLeaner and clean the registry items, reboot the PC and then re-install it again.
